Stadium: Centre Court Round: 25
| ITF Women Daegu Qual | 2018/06/19 01:00 | Kotomi Takahata v Seung-Yeon Hong | 6-4,3-6,6-3 |
| ITF Women Incheon Qual | 2018/05/13 01:00 | Zhibek Kulambayeva v Seung-Yeon Hong | 6-3,6-4 |
| ITF Women Goyang Qual | 2018/05/08 01:00 | Alina Silich v Seung-Yeon Hong | 6-4,6-4 |
| ITF Women Yeongwol | 2017/09/09 02:00 | Seung-Yeon Hong v Na Ri Kim | 2-6,0-6 |
| ITF Women Yeongwol | 2017/09/07 03:40 | Seung-Yeon Hong v You-Na Sul | 6-1,6-4 |
| ITF Women Yeongwol | 2017/09/05 02:00 | Seung-Yeon Hong v Alexandra Walters | 6-1,6-0 |
| ITF Women Gimcheon | 2017/06/16 02:00 | Seung-Yeon Hong v Sung-Hee Han | 6-4,1-6,5-7 |
| ITF Women Gimcheon | 2017/06/15 03:15 | Seung-Yeon Hong v Hyojung Yea | 6-0,6-3 |
| ITF Women Sangju Qual | 2018/06/04 05:00 | Sung Hee Kim v Ai Kamiyoshihara | 6-3,6-3 |
| ITF Women Hua Hin Qual | 2018/05/07 02:30 | Ai Kamiyoshihara v Maree Teiwa Casey | 4-6,2-6 |
| ITF Women Hua Hin Qual | 2018/05/06 02:30 | I-Hsuan Cho v Ai Kamiyoshihara | 3-6,6-7 |
| ITF Women Hua Hin Qual | 2018/05/05 02:30 | Avika Sagwal v Ai Kamiyoshihara | 4-6,5-7 |
| ITF Women Hua Hin Qual | 2018/04/29 06:00 | Yi Tsen Cho v Ai Kamiyoshihara | 2-6,6-1,6-3 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Ai Kamiyoshihara v Satoko Sueno | 2-6,0-6 |
| ITF Women Antalya | 2018/02/03 06:30 | Giulia Crescenzi v Ai Kamiyoshihara | 6-3,6-2 |
| ITF Women Antalya | 2018/01/29 08:00 | Giulia Crescenzi v Ai Kamiyoshihara | 6-3,6-1 |